I can feel your pain. . . Years ago I lived in Lawton, Ok and drove 100 miles 2 nights a week for 8 weeks to take lessons in Oklahoma City, just for a C-card that wasn't even required in those days. Ok, I also was making an air run for our dive club, in Lawton. Don't worry, you won't have to work that hard. . . Check out the dive shop you already know about, but try two other options: You'll probably prefer your early dives in Posum Kingdom lake near Wichita Falls, TX, or Tenkiller lake near Gore, Ok. Both of these lakes are better diving than Texoma lake. At both lakes there are very good dive shops that can certify you in a 3-day class. You'll learn to dive in better visability and gain some experince that will prepare you to dive Texoma for hunting fish. That's a tough lake to dive, but full of rough fish if you want to spearfish. PM me if you want more information.